I both agree and disagree. I agree in that I have a close friend who owns his own very successful business and LTE made absolute sense in both coverage and cost. When two-way communications became necessary, there was no reason to choose LMR over LTE. This person is familiar and has used LMR over almost 2 decades (LTR/NXDN/shared FM repeaters) and even I could not conjure up any reasonable argument for staying with LMR. With him having several mobile and portable LTE 2 way subscribers deployed I have to admit local or regional LMR airtime options lost out in his case. He is very radio savvy, and in the VERY few instances where LTE coverage was lost they just temporarily used personal phones to coordinate and resume comms over the "radios" once out of the minimal dead zones.
Where I disagree is that Hotspots, LTE, etc is not real radio. Even though LTE may not fit the traditional definition of radio, it most surely is. We can't monitor those systems as in the past and that will be a trend in the near future but it is still radio nonetheless. You, I, us cant monitor it...but it's still radio for sure.
It's hard to convince a small to midsize business owner to front the cost of mobile, base and portable subscriber units plus the monthly airtime fees when decent Chinese or even Motorola units will do the same job for the minimal cost of a unit and data only sim card. No installation costs, base station setups, yagis, coax, extra fees for encrytion, etc. There still will be cases where particular campuses/warehouses/local businesses benifit from local based LMR systems, but in today's world LTE is extremely attractive and meets the needs of lots of traditionally target LMR customers for less $. Simplex local comms is where LMR is seemeing to really shine right now. But it's getting harder to make the case for large regional LMR costs except for specific business models.
Heck, I've pondered subscribing to Mototorla's WAVE service and piping into my hotspot at home for ham and monitoring my local PS away from home.
It's not all doom and gloom as I think that mid to large companies will migrate to local LMR based systems with linked LTE subscribers for extended regional/national coverage. There are areas I travel daily where AT&T drops out but the local 7/800 mhz public safety system AND the local DMR amateur radio network are full strength and usable.
Lets discuss this as there are multiple factors at play around the country (topography, LTE coverage, costs and such).